A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
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Página 22
... float numerous particles of very irre- gular form and size . In this fluid may be observed a constant rotatory motion , rendered apparent by the floating corpuscles as they are whirled away under the influence of the currents . That the ...
... float numerous particles of very irre- gular form and size . In this fluid may be observed a constant rotatory motion , rendered apparent by the floating corpuscles as they are whirled away under the influence of the currents . That the ...
Página 82
... floating . " The surface of the polype mass has the appearance of being covered with a dense mucor from the numerous ... float . " The luxuriance of growth of Pectinatella magnifica in the only locality which has as yet been recorded for ...
... floating . " The surface of the polype mass has the appearance of being covered with a dense mucor from the numerous ... float . " The luxuriance of growth of Pectinatella magnifica in the only locality which has as yet been recorded for ...
Página 107
... floating leaves in still water . Avoiding the light . LOCALITY . - Millpond , Bandon Distillery , county of Cork , attached to the under surface of the leaves of Potomogeton natans . I have as yet met with P. elegans only in one ...
... floating leaves in still water . Avoiding the light . LOCALITY . - Millpond , Bandon Distillery , county of Cork , attached to the under surface of the leaves of Potomogeton natans . I have as yet met with P. elegans only in one ...
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A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
Términos y frases comunes
adherent Alcyonella Alcyonella fungosa Alcyonella stagnorum alimentary canal Allman anatomy animal annulus Ascidian attached become Beneden Bowerbankia Brachiopoda branches branchial sac Brit Brux campanulata cavity cell cilia cœnocium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed œsophagus organ orifice Original figures ovary ovum Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype à Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rösel seen septa side species specimens statoblasts stomach structure surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph Zoophytes